"Calculate the square root of 10 (√ 10) to 4 decimal places.<span>Find the perfect square number closer to 10. 32 = 9 and 42 = 16, so take 3.Divide 10 by 3. 10÷3 = 3.33 (you can round off the answer)Average 3.33 and 3. ( 3.33 + 3)÷2 = 3.1667."
Source-</span>http://burningmath.blogspot.com/2013/12/finding-square-roots-of-numbers-that.html
Answer:B
Step-by-step explanation:
Given
Every student secure same average score
Standard deviation is denoted by \sigma




Consistency is criteria of acceptance then Student should be selected the standard deviation is least for student B.
Standard deviation tells how a data varies from mean Position .
More Deviation from mean indicates less consistency .
It seems to me this just wants you to add the 3 equations.
2m + 2n +5p